CHARGING DEVICE AND METHOD USING DUAL-MODE MAGNETIC COUPLING FOR AN AUTOMOBILE VEHICLE
First Claim
1. A device (10) for charging a mobile terminal by magnetic coupling, comprising a first charging module (11) designed to form a charging signal at a first charging frequency (F1), a primary coil (13) composed of a set of turns, a ferromagnetic body (14), a second charging module (12) designed to form a charging signal at a second charging frequency (F2), higher than the first charging frequency (F1), characterized in that it comprises:
- first routing means (150) designed to connect/disconnect the primary coil (13) to/from the first charging module (11) and to/from the second charging module (12),means (16) for adjusting the number of turns (NT, N2) of the primary coil (13) designed to activate/disable a de-activatable sub-set of turns (N1) of the primary coil (13),means (19) for saturating the ferromagnetic body (14) designed to reduce, within said ferromagnetic body (14), the magnetic field formed by the primary coil (13) when said primary coil (13) is connected to the second charging module (12).
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Accused Products
Abstract
A device (10) for charging a mobile terminal by magnetic coupling, includes a first charging module (11) designed to form a charging signal at a first charging frequency, a primary coil (13) composed of a set of turns, a ferromagnetic body (14), a second charging module (12) designed to form a charging signal at a second charging frequency, higher than the first charging frequency. Furthermore, the charging device includes first routing elements (150) designed to connect/disconnect the primary coil (13) to/from the first charging module (11) and to/from the second charging module (12), elements (16) for adjusting the number of turns on the primary coil (13) and elements (19) for saturating the ferromagnetic body (14) at the second charging frequency. A charging method is also described.
10 Citations
19 Claims
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1. A device (10) for charging a mobile terminal by magnetic coupling, comprising a first charging module (11) designed to form a charging signal at a first charging frequency (F1), a primary coil (13) composed of a set of turns, a ferromagnetic body (14), a second charging module (12) designed to form a charging signal at a second charging frequency (F2), higher than the first charging frequency (F1), characterized in that it comprises:
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first routing means (150) designed to connect/disconnect the primary coil (13) to/from the first charging module (11) and to/from the second charging module (12), means (16) for adjusting the number of turns (NT, N2) of the primary coil (13) designed to activate/disable a de-activatable sub-set of turns (N1) of the primary coil (13), means (19) for saturating the ferromagnetic body (14) designed to reduce, within said ferromagnetic body (14), the magnetic field formed by the primary coil (13) when said primary coil (13) is connected to the second charging module (12). - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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Specification